Unitary handset



FIG. 1 is a front elevational view of the unitary handset; and,

FIG. 2 is a right side elevational view thereof.

The rear, right side, and any other portions of the article not shown in the drawing or described in the specification form no part of the claimed design.

The broken lines shown throughout the views that are immediately adjacent to the shaded areas, and define unshaded regions, represent the bounds of the claimed design, while all other broken lines are directed to environment and are for illustrative purposes only; the broken lines form no part of the claimed design. 

The ornamental design for a unitary handset, as shown and described. 